But despite his astonishing lack of remorse, Justice Secretary Michael Gove is said to be powerless to keep the paedo in jail beyond the halfway point of his sentence.

A Ministry of Justice spokeswoman confirmed Harris would be automatically released after serving half his sentence.

Other lyrics from the vile song include: “Climb out of the woodwork babe from 40 years ago. The climate’s great in Britain now for making loads of dough.

"You’ve festered down there long enough, time’s right to grab your chance. Clap eyes on a rich celebrity and make the bastard dance.”

TRIAL: Harris during his trial with his wife Alwen Hughes and daughter Bindi [GETTY]

“Just when I thought you could get no lower, you say I am a worm”

Victim Wendy Wild

Liz Dux, a specialist abuse lawyer at the Slater and Gordon law firm who represented all the women who gave evidence at Harris' trial, said: "This letter was clearly written by a man who has contempt for his victims and is utterly unrepentant.

"Far from being reformed by his time in prison, it seems to have fed his perverse sense of indignation and his arrogance is undiminished."

One of Harris' victims, brave 54-year-old Wendy Wild, was infuriated by the distgusting song.

Wendy – who was abused by the vile entertainer when she was just seven – hit back at Harris with her own song.